Four men have been arrested after a teenage boy was killed and another was injured during a stabbing atatck in a park near Nine Elms.

One of the boys was already dead by the time emergency crews arrived at Larkhall Park, Lambeth, at 8.30pm last night.

The other victim is in a stable condition in hospital.

Residents said they heard a fight involving several people around the time of the incident but a Metropolitan Police spokesman said a motive for the attack was not clear.

Most of Larkhall Park has been sealed off following the incident and a 100-metre stretch of Wandsworth Road - which runs into Battersea has also been closed to traffic.

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